KOYO crankshaft main bearings are precision-engineered following strict OEM standards to ensure the highest quality and perfect fitment for both OEM and aftermarket crankshafts. These bearings are made from premium materials to provide durability, reliability, and optimal performance, making them the ideal choice for maintaining the integrity of your engine. Designed to handle high stress and friction, KOYO main bearings help extend the lifespan of your engine by offering superior wear resistance and operational efficiency. These bearings are specifically crafted to meet the demands of HONDA engines, ensuring seamless integration and superior functionality, whether you're performing routine maintenance or a complete engine rebuild.